Which of the Following Best Describes Prolonged Weaning from Mechanical

Which of the following best describes prolonged weaning from mechanical ventilation?

A) Patients who wean from mechanical ventilation in one to two SBT attempts.
B) Patients who wean from mechanical ventilation in one to three SBT attempts.
C) Patients who fail at least three SBT attempts and require a more gradual approach.
D) Patients who wean within one to three SBT attempts but require more than a week of weaning from the first SBT attempt.